252778029 has 8 divisors (see below), whose sum is σ = 385185600. Its totient is φ = 144444576.

The previous prime is 252778021. The next prime is 252778063. The reversal of 252778029 is 920877252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252778029 - 2³ = 252778021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252778021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6018504 + ... + 6018545.

It is an arithmetic number, because the mean of its divisors is an integer number (48148200).

Almost surely, 2^252778029 is an apocalyptic number.

It is an amenable number.

252778029 is a deficient number, since it is larger than the sum of its proper divisors (132407571).

252778029 is a wasteful number, since it uses less digits than its factorization.

252778029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12037059.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 252778029 is about 15898.9945908539. The cubic root of 252778029 is about 632.2853330580.

The spelling of 252778029 in words is "two hundred fifty-two million, seven hundred seventy-eight thousand, twenty-nine".